Pig-guard.



H. L. FERRIS.

PIG GUARD. APPLICATION mED Allam. 1911.

Patented Nov. 5, 1918 Q, f v.

UNTTED sTATEs PATENT oEErcE.

HENRY L. FERRIS, OF HARVARD, ILLINOIS, ASSIGNOR T0 HUNT-HIELlVI-FERRIS & COMPANY, OF HARVARD, ILLINOIS, A CORPORATION OF ILLINOIS.

PIG-GUARD.

tion on the line 2 of Fig. 1; Fig. 3 is a simi-V lar view with the guard extended, and Fig. 4 is a section on the line 4 of Fig. 2.

Referring to the drawings, 5 are postsy supporting a bottom bar 6 which in turn supports vertical bars or uprights 7.

Pivoted on two of these uprights are guard arms 8 each having a vertical bar 9 surrounding the uprights. One arm also has two Vflanged perforated projections 10 and 11 at right angles to each other. The arms pivotally support by their ends a guard bar 12. Y

When the guard is out of use it is swung back against the wall of the pig-pen and the perforation in the projection 10 then registers with the corresponding perforation in the bottom bar 6, so that the guard may be locked in its retracted position by a pin 13. When the guard is to be used, it is swung out from the wall of the pig-pen and is locked by passing the pin through the perforation in the projection 11. (See Fig. 3.)

The present structure is exceedingly simple, strong, eiicient and readily assembled.

I realize that considerable variation is possible in the details of this construction without departing from the spirit of my invention; therefore I do not intend t-o limit myself to the specific form herein shown and described except as pointed out in the fol- Copies of this patent may be obtained for ve cents each, by addressing the Specication of Letters Patent.

claim all the novelty inherent in the con-- struction as broadly as is permitted by the state of the art.

What I claim as new and desire to secure by Letters Patent is:

1. In combination with the wall of a pigpen, a guard comprising two arms swinging in a horizontal plane on vertical pivots on the wall, a bar supported by the free ends of the arms to be swung therewith to and from the wall, said arms when in their extended position supporting said bar at a height above the floor of the pen suiicient to permit the smaller pigs to pass thereunder but to exclude the larger pigs, and means to lock the arnlnls in extended position or against the wa 2. In combination with the wall of a pigpen, a guard comprising two arms swinging in a horizontal plane on vertical pivots on the wall, an arm having radial perforated projections to register with a corresponding stationary perforation, abar supported by the free ends of the arms, and means engaging said perforations to lock the arms in extended position or against the wall.

3. In combination, a pen wall comprising horizontal and vertical members, two arms pivotally supported upon the vertical members of the wall and swinging around the same as axes, and a guard rail pivotally supported by the free ends of the arms and adapted to be swung therewith toward or from the wall, said arms when in their extended position supporting said guard rail at a height above the floor ofthe pen suiiicient to Vpermit the smaller pigsA to pass thereunder but to exclude the larger pigs, and means for locking the arms to hold the guard rail Vin extended or retracted position.

In testimony whereof, I have hereunto set my hand this 26th day of July,1917.

Commissioner of Patents,

Washington, D. C.

Patented Nov. 5, 1918. y Application iiled August 11, 1917. Serial N' o. 185,699. 

